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0.9° NEMA 17 Gear Reducer Stepper Motor with Precision Planetary Speed Reducer Gearbox
This 0.9° NEMA 17 gear reducer stepper motor integrates a high precision planetary speed reducer gearbox for enhanced torque output, low backlash, and accurate positioning. Designed for automation, robotics, CNC systems, and precision motion control applications, this gearbox reducer motor offers smooth low-speed performance and stable transmission efficiency.
0.9° NEMA 17 Gear Reducer Stepper Motor
This high precision speed reducer gearbox motor combines a 0.9° hybrid stepper motor with a compact planetary transmission system for accurate motion control and increased output torque.
The integrated planetary gear reducers structure delivers stable low-speed operation, high transmission efficiency, and reduced mechanical backlash.
Compared with standard stepper motors, this gear reducer stepper motor provides finer positioning accuracy and smoother rotational control, making it ideal for robotics, semiconductor equipment, CNC automation, optical systems, and precision positioning platforms.
Main Features
- 0.9° high resolution step angle
- Integrated precision speed reducer gearbox
- Compact NEMA 17 gear reducer structure
- High torque planetary gearbox reducer
- Low backlash transmission design
- Stable low-speed motion control
- Multiple reduction ratios available
- Suitable for industrial automation systems
Motor Technical Specifications
| Parameter | Specification |
|---|---|
| Motor Type | Planetary Gear Reducer Stepper Motor |
| Frame Size | NEMA 17 (42×42mm) |
| Step Angle | 0.9° ±5% |
| Phase Number | 2 |
| Phase Voltage | 3.06 VDC |
| Phase Current | 1.7 A |
| Holding Torque | 0.40 Nm |
| Phase Resistance | 1.8 Ω ±10% |
| Phase Inductance | 4.0 mH ±20% |
| Insulation Class | Class B |
| Insulation Resistance | 100MΩ Min. (500V DC) |
| Operating Temperature | -20°C to +50°C |
| Ambient Humidity | 15% to 95% |
| Motor Weight | Approx. 0.38kg |
| Recommended Driver | OK2D4020A |
Planetary Gear Reducers Specifications
| Reducer Stage | Reduction Ratio | Rated Load (Nm) | Reducer Length (mm) | Efficiency | Backlash | Noise |
|---|---|---|---|---|---|---|
| Level 1 | 3 / 4 / 5 / 10 | 8 – 10 Nm | 40 mm | 96% | <15 arcmin | <55 dB |
| Level 2 | 12 / 16 / 20 / 25 / 35 / 40 / 50 / 70 | 10 Nm | 51 mm | 94% | <20 arcmin | <55 dB |
Excitation Sequence and Direction of Clockwise Rotation
| STEP | A+ | B+ | A− | B− |
|---|---|---|---|---|
| 1 | + | + | − | − |
| 2 | − | + | + | − |
| 3 | − | − | + | + |
| 4 | + | − | − | + |
Wiring Diagram
| Wire Color | Phase | Description |
|---|---|---|
| Black | A+ | Phase A Positive |
| Green | A− | Phase A Negative |
| Red | B+ | Phase B Positive |
| Blue | B− | Phase B Negative |
Applications
- Industrial automation systems
- Robotic positioning platforms
- Precision CNC motion control
- Semiconductor equipment
- Optical alignment devices
- Medical automation systems
- Precision gearbox reducer applications
Customization Options
Custom reduction ratios, shaft structures, encoder integration, connector types, and cable lengths are available for OEM gearbox reducer projects.
Download Datasheet
Download the full specification sheet for detailed parameters, wiring guide, and performance curves.
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